Ball-bearing.



' C. H. CHAPMAN, DECD.

F. F. B. CHAPNML ADMINQSTRATR.

B ALLBEARING,

APPLICATION FILED IAN. 23. 19H.

1,21 3,805. 4 Patented Jan. 23, 1917.

" New 'MAN, a citizen of the Ball-Bearings,

'especially adapted forl shafting,

UNITED STATES PATENT OFFICE.

Speeicatimofjlggtrrlatt patented J an. 23, 1917. ,Applicationiled January 23,A

To all whom it may eminem.'

Be it known that I, CHARLES H, CHAr- United States, residing at Winchester, in .the county of Middlesex and State of Massachusetts, have invented a certain new i 0f which the following is a exact description.

full, clear, and

'this invention is to provide he object of an improved ball bearing for shafting of.

simple construction and few parts which is .supported in hangers and the like, whereby the entire bearing may be applied to or disconnected from the shaft and hanger Without disconnecting or disturbing. either the pulleysor sha-fting.

he invention consist-slof a ba'll bearing,

in` accordance with the stated object ofthe invention, and comprises a divided sleeve having-its ends constructed so as to be fitted to the shaft and formed with ball races, and dii vided rings adapted to be -applied to the sleeve so as to hold the parts of the sleeve together and fixedly lock them to the shaft and also adapted to be operated-to permit the removal of the.sleeve fromthe shaft, as hereinafter explained and claimed.

he invention also consists of certain details of construction, as hereinafter more fully explained and claimed.

Inthe accompanying drawings illustrating the invention, in the several figures of which like parts are similarly designated, igure 1 is a side'elevation of they, bearing with one end partly in section to show the interior construction, which is similar`in both ends' of the' bearing, a part of the' hanger beingshown in section." Fig. 2 is an end elevation of Fig. 1 looking at the sectioned end and showing a modication of the hanger arrangement; Fig. 3 is a per-v A ective view of the locking tiie arts of the sleeve together andg'firmly to t e shaft. Fig; `4 is an interior elevation of the upper part of the housing. Fig. 5 is an interior elevation of one Fart of the sleeve. F ig. 6 is a side view4 o the other art, and Fig. 7 is an end elevation thereof.

ig. 8 is an elevation of the ball retainer partl in longitudinal section, and Vshowing the s eeve and'shaft in cross-section. Fi 9 is a cross-section of the ball retainer ta (en on line A B, of Fig. 8.

The part numbered 1 may be a shaft, which, for purposes of illustration of the and useful Improvement in 1 meetlng edges. The lock sive loads.

ring which locks leu. semina. 813,971. 4

hinvention, is shown as to lbe supported in or- -dinary hangers,

such as 2. At the point of application to the hanger the shaft is embraced by a divided sleeve 3, composed, for example, of halvesrof identical construction, excepting that one half may have' a number of pins4 which enter corresponding holes 5 in the other half so as to aline them about These halves are secured about of screwthreaded locking ing rings may be made in halves hinged together as at 10, and adapted to be separably united by a, screw 11, so that they maybe readily a plied'and removed without dismountinst e shaft. These rings mayv have the nic to receive a Spanner. wrench to tighten'their hold on the sleeve when in place and' to rn them off so as to facilitate their separation. Thelsleeve ends are of smaller internal di ameter than -their middle portions. Next to their ends the sleeve is constructed vwith circumferential grooves '13 forming ball and the anterior diameter of the sleeve under` these ball races is about the same as at the ends so as to seat on the shaft and thereby resist deformation under exces- 'Ihe housing 14 is likewise divided, and made in halves, one of which is shown in Fig. 4, and these Y identical, excepting, that one has the Pins` 15 and the other' holes V16 enteredby the pms uppermost half has the ducts I7 for the introduction of lubricant. Theseducts may be closed by pins 18 so constructedasto be lubricant into-the used also for forcing the bearing. The ends of the are formed races 19 to ball races on housinlr halves the sleeve, yandthe radii of these ball races vare slightly larger than theradiu's of the'load-carrying balls, and this variation is regulated so as to give the desired width of Contact of the balls on the races. The.`

halves may be' preferably withl chil ed hall-V- correspond .and aline with the ball races on the sleeve and the housing are Y preferably cast upon chills, to render "them very smooth and hard, and so 4as to require comparatively little grinding. The housing alves are provided with opposite alined exterior bosses 20 toV cooperate with'supports vtaine'r may be made in two 2l applied to the hanger 2. As shown in Fig. l, these bosses are spherical and the supports 2l are cup-shaped to fit them. As shown in Fig. 2 the supports 22 may be cones to enter corresponding cavities 23 in the bosses. In either case the supports are provided' with screwthreaded Shanks Q4 so that the supports may be adjusted in the hangers into proper bearing-sustaining relation to the bosses and fixed in such adjusted position by the lock-nuts or jamb-nuts 25.

In the form shown in Fig. l, the construetion is substantially a ball and socket joint, and the bearing automatically alines itself both vertically and laterally With the shaft when the hanger is properly set, but with the construction shown in Fig. 2, the bearing can swing horizontally to aline itself with the shaft, but can not swing vertically excepting to a very slight extent il at all, dependent upon the lit of the pointed screw supports in the cavities in the bearing bosses.

The ball races may be such as to receive any desired arrangement of bearing balls, but I prefer to use an arrangement comprising load-carrying balls 26 with alternating idler balls 27 of smaller diameter collocated in an annular retainer 28 which is provided with holes 29 to receive the load-carrying balls and' intermediate grooves 30 to hold the idler balls against outward escape. This ball retainer is of slightly smaller diameter than the outside* diameter or' the ball race, so that in coperation with the load-carrying balls it will be held in concentric position in the ball race and rotate therein. The ball race in the 'sleeve prevents the es cape of the idler balls in that direction, and these balls are thrown out by centrifugal force into the groove 30 in the operation of the bearing and held at or near the center line through the load-carrying balls. When the bearing is at rest, the uppermost idler balls may drop down upon the chilled races of the sleeve, but as soon as the bearing is set in operation the centrifugal force acts upon these balls and at once causes them to assume'their position in the g1 oves 30 centrally between the load-carryig balls.

As shown in Figs. 1 and 9, 'the ball reor more parts interlocked together, as by the L-shaped joints 31.

In applving the bearing to a shaft, the lower half of the housing is placed inthe hanger, and then the wo halves of the sleeve are applied to the shaft, and the opened locking rings are placed around the shaft, and then closed, and the rings screwed up upon the threaded portions of the sleeve until the sleeve fit the shaft with an easy slip fit. l e ret ners and balls are then `the alined ball races of placed around the ball races of the sleeve, and then the upper portion of the housing is applied, and forced down into place by turning the upper screw support in the hanger. The lubricating holes are filled with grease and the pins replaced therein so as to force the grease down into the bearing and into position to be distributed by the ball retainers, after which the locking rings are tightened so as to firmly lock the ends of the sleeve to the shaft and cause the sleeve to rotate with the shaft and prevent lateral movement of the sleeve upon the shaft.

By means of the invention herein eX- plained, I am able to produce a bearing simple in construction and of 'few Darts at a cost considerably below the cost ed a bearing made with independent or continuous ball cups and cones, which are very experi sive and hard to install, rcrpiiring the uncoupling of the shaft and if if val et 35 pulleys, both for the installateur he bear ing and its removal.

Obviously variations in details of construction are within the principle of the invention and the scope of the claims herein.

What I claim is 1. In a ball bearing for shutting, a divided sleeve provided with slotted and tapered screwthreaded ends adapted to be' litw ted to the shaft and having circumferential i chilled ball-races formed thereon, and di vided and hinged locking rings having tapered screwthreaded porti te eng-age the threaded tapered ends of t1 sleeve and adapted to hold. the carts of t e sleeve gether and lixedly .lo the shaft, said locking rings adJ1 ened and removed i' .mit the removal. eli races from the shaft.

2. In a ball bearingfer slaat vided sleeve having tapered e terior diameter than the re interior of the sleeve and chilled ball-races forme therein ed to he litted to the shaft, to ably bind said sleeve at its 'a divided housing having intr i c! lied ball-races formed therein in alinement with the ball-races of the sleeve and applied, to said sleeve, and bearing balls arranged in the sleeve and housing.

In testimony whereof I have hereunto set 4my hand this 21st day of January A. D. 1914.

CHARLES H. CHAPMAN.

Witnesses:

OSCAR E. STEVENS, FRED H. CHAPMAN. 

